Box structure



FIG. 1 is a perspective view of a box structure showing my new design.

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view thereof; and

FIG. 7 is a front view thereof.

FIG. 8 is a perspective view of a box structure showing my new design.

FIG. 9 is a bottom view thereof;

FIG. 10 is a top view thereof;

FIG. 11 is a right side view thereof;

FIG. 12 is a left side view thereof;

FIG. 13 is a rear view thereof; and,

FIG. 14 is a front view thereof.

CLAIM The ornamental design for a box structure, as shown and described.